US4221196A - Liner for internal combustion engine - Google Patents

Liner for internal combustion engine Download PDF

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Publication number
US4221196A
US4221196A US05/973,935 US97393578A US4221196A US 4221196 A US4221196 A US 4221196A US 97393578 A US97393578 A US 97393578A US 4221196 A US4221196 A US 4221196A
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US
United States
Prior art keywords
liner
ribs
thickness
flat portions
compressed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/973,935
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English (en)
Inventor
Armand Castarede
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Regie Nationale des Usines Renault
Original Assignee
Regie Nationale des Usines Renault
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Regie Nationale des Usines Renault filed Critical Regie Nationale des Usines Renault
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Publication of US4221196A publication Critical patent/US4221196A/en
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Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/16—Cylinder liners of wet type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/16—Cylinder liners of wet type
    • F02F1/163—Cylinder liners of wet type the liner being midsupported
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the present invention relates to an improvement in the performance of liners called "wet and compressed” liners, installed in the cylinder blocks of internal combustion engines and particularly Diesel engines with precombustion chambers.
  • the liners called “suspended”, unlike those called “compressed”, have on their upper part, a cylindrical flange for their support in the cylinder block. This entails large interaxial distances between cylinders and vaults or reinforcements in the intercylinder plane to avoid the depression of the liner when tightening down the cylinder head. Further, the cooling of the upper part of the liner is from beneath the support of the flange, which reduces its effectiveness in the hottest zone.
  • O-ring sealing systems permit then, the reduction of the surface of support of the liner as a function of the allowable value of the support pressure limit, called that of caulking, which depends on the resistance of the materials in contact.
  • rib material is particularly more interesting than increasing the thickness of the liner to the detriment of motor weight and heat exchanging.
  • the shape and placement of these ribs should be compatible with casting in a centrifuged chill-mold to retain the benefit of this type of fabrication. They will be very spread-out and therefore will present a large lateral surface allowing good removal of heat.
  • the flats in the intercylinder plane will be sufficiently extended to form, at each lateral extremity, a rib joining with the liner barrel to give rigidity to the compressed portion of the liner.
  • the ovalization of the liner under the action of cylinder head tightening, tightening which can be accentuated to obtain better sealing and greater longevity of the head gasket or to avoid retightening, is thereby considerably reduced which decreases piston wear and energy consuming friction.
  • FIG. 1 represents, in elevation and half-section, a compressed liner constructed according to the invention, the half-section showing the thickness of the supporting ear of the prechamber;
  • FIG. 2 is a view from the left showing the stiffening ribs starting from this support ear;
  • FIG. 3 shows a transverse section of the liner at the level C
  • FIG. 4 is a view from above showing the contour of the upper rim and its supporting ear of the combustion chamber.
  • the liner thus represented is installed in a compressed condition with its face 1 contacting the cylinder head and its shoulder 2 inside the cylinder block (not shown).
  • the liner is prolonged by a skirt 3.
  • the compressed portion between 1 and 2 exhibits, in addition to its reinforced thickness 4 on the one hand, two diametrically opposed flats 5 which are perpendicular to the plane of alignment of cylinders and permitting reduction of the interaxial distance between cylinders, and a resultant reduction in the thickness which is compensated for by the rounded junctions 7 with the cylindrical surface of the sleeve thus forming reinforced sections on either side of the thinnest zone 6.
  • longitudinal ribs 8 are distributed around the rest of the periphery of the compressed sleeve 4, some coming together under the support ear 9 of the prechamber and then diverging along the surface of the sleeve as shown in FIG. 2.
  • the ribs 8 and reinforcements 7 are essentially equidistant on the liner periphery. Their length will be limited to the level 10, as indicated in FIGS. 1 and 2, in the case where the shape of the block limits the dimensions of the shoulder 2.
  • the compressed type of internal combustion engine liner of the invention is characterized by the fact that the thickness 4 of the compressed part is reinforced while maintaining a reduced interaxial distance between cylinders through the provision of two longitudinal flats 5 perpendicular to the plane of the cylinders and diametrically opposed.
  • the resultant reduced thickness 6 of the liner is compensated for by joining the said flats 5 with concave roundings 7 to the surface of the liner, thus forming thick reinforcements on the two sides of the thinnest zone 6.
  • Longitudinal reinforcing ribs 8, essentially equidistant with the reinforcements 7, are distributed around the liner periphery.
  • the ribs 8 and reinforcement zones 7 stop at a level 10 at a slight distance from the support shoulder 2 in the motor cylinder block when this may permit provision of a reduced support flange 2, notably in compact engines.
  • an ear 9 for support of the prechamber on the face 1 in contact with the head is reinforced by two longitudinal ribs 8 which then separate along the sleeve surface.
  • the ribs 8, and zones of reinforcement 7 of flats 5 will have a radial thickness essentially equal to their width and are joined to the liner surface by round-offs of a radius at least equal to this width as shown in the figures where the radial thicknesses and widths of the ribs 8 and reinforcement zones 7 are slightly less than the thickness 4 of the compressed zone of the liner.
  • the described figures represent a ribbed liner in the case of a Diesel engine with a precombustion chamber provided on the lower face of the head, as in the type described in the French Patent Application No. 76/17030 in the name of the applicant.
  • the block of this motor may be of aluminum cast under pressure to reduce the weight and increase heat transfer, the interaxial distance between cylinders being reduced to the minimum thanks to flats 5 milled on the peripheral surface of the liner for the height of the liner in the water jacket, the water jacket permitting circulation of water between liners; the zones 6 made thin by the flats 5 being reinforced by the adjacent ridges 7.
  • Two longitudinal ribs 8 parallel to the axis of the liner and essentially equidistant from themselves and the end ridges 7 run along the half of the liner opposite to the prechamber.
  • the latter installed in the head, rests against the ear 9 formed by the upper flange of the liner.
  • This ear is supported by two ribs 8 which diverge in order to diffuse the strong forces of compression engendered by the passage from the prechamber with respect to the head surface and to stiffen the barrel of the liner at the most appropriate places.
  • wet and compressed liners may be employed in Diesel engines with a prechamber installed in the head face while using large tightening forces in order to obtain a high pressure in the sealing zones which assures the long life of the head gasket and the dispensing with retightening.
  • the advantage inherent in the use of these liners, as pointed out above, are thus made available to the motorist and particularly of the dieselist without subjecting the liners to deformations prejudicial to piston wear.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
US05/973,935 1978-01-03 1978-12-28 Liner for internal combustion engine Expired - Lifetime US4221196A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7800033 1978-01-03
FR7800033A FR2413553A1 (fr) 1978-01-03 1978-01-03 Chemise de moteur a combustion interne

Publications (1)

Publication Number Publication Date
US4221196A true US4221196A (en) 1980-09-09

Family

ID=9203076

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/973,935 Expired - Lifetime US4221196A (en) 1978-01-03 1978-12-28 Liner for internal combustion engine

Country Status (12)

Country Link
US (1) US4221196A (nl)
JP (1) JPS5493710A (nl)
BE (1) BE873245A (nl)
DE (2) DE7900094U1 (nl)
ES (1) ES245592Y (nl)
FR (1) FR2413553A1 (nl)
GB (1) GB2011534B (nl)
IT (1) IT1108364B (nl)
PT (1) PT68792A (nl)
RO (1) RO80199A (nl)
SE (1) SE438890B (nl)
TR (1) TR21163A (nl)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4554892A (en) * 1983-06-21 1985-11-26 Yanmar Diesel Engine Co., Ltd. Water-cooled diesel engine for use as outboard engine
US4986230A (en) * 1989-12-27 1991-01-22 Ford Motor Company Method of joining cylinder bore liners to an engine block
US5189992A (en) * 1991-06-06 1993-03-02 Teikoku Piston Ring Co., Ltd. Cylinder liner
US5271363A (en) * 1992-12-02 1993-12-21 Briggs & Stratton Corp. Reinforced cylinder for an internal combustion engine
US5357921A (en) * 1992-01-06 1994-10-25 Honda Giken Kogyo Kabushiki Kaisha Cylinder block and a process for casting the same
US5549454A (en) * 1993-03-04 1996-08-27 Wabco Automotive U.K. Limited High speed vacuum pump with reduced exhaust noise
US6138630A (en) * 1999-10-28 2000-10-31 Metalicos De Tecnologia Avanzada, S.A. De C.V. Cylinder liners for aluminum motor blocks and methods of production
US6357400B1 (en) 2000-03-07 2002-03-19 Federal-Mogul World Wide, Inc. Piston sleeve
US20050005891A1 (en) * 2003-07-10 2005-01-13 Min-Kyu Oh Cylinder liner
US20050188738A1 (en) * 2004-02-27 2005-09-01 George Rauscher Forged flange cylinder liner and method of manufacture
US20130139784A1 (en) * 2011-12-01 2013-06-06 Cummins Intellectual Property, Inc. Prechamber device for internal combustion engine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820462A1 (de) * 1988-06-16 1989-12-21 Kloeckner Humboldt Deutz Ag Zylinderrohr
DE19845347C1 (de) * 1998-10-02 2000-03-30 Federal Mogul Burscheid Gmbh Zylinderlaufbuchse
JP4850672B2 (ja) * 2006-12-01 2012-01-11 富士重工業株式会社 シリンダブロック
DE102011085476A1 (de) * 2011-10-28 2013-05-02 Ks Kolbenschmidt Gmbh Funktionsoptimierte Gestaltung einer Zylinderlaufbuchse

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1177162A (en) * 1914-07-03 1916-03-28 Anonima Italiana Gio Ansaldo & C Soc Cylinder of internal-combustion engines.
FR609917A (fr) * 1926-01-25 1926-08-26 Chemise pour la réduction de la cylindrée des moteurs à culasse rapportée et piston correspondant
FR1043913A (fr) * 1951-10-17 1953-11-12 Chemise amovible pour moteurs thermiques à pistons à monuement alternatif

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR807124A (fr) * 1935-09-21 1937-01-05 Perfectionnement aux moteurs thermiques à cylindres interchangeables

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1177162A (en) * 1914-07-03 1916-03-28 Anonima Italiana Gio Ansaldo & C Soc Cylinder of internal-combustion engines.
FR609917A (fr) * 1926-01-25 1926-08-26 Chemise pour la réduction de la cylindrée des moteurs à culasse rapportée et piston correspondant
FR1043913A (fr) * 1951-10-17 1953-11-12 Chemise amovible pour moteurs thermiques à pistons à monuement alternatif

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4554892A (en) * 1983-06-21 1985-11-26 Yanmar Diesel Engine Co., Ltd. Water-cooled diesel engine for use as outboard engine
US4986230A (en) * 1989-12-27 1991-01-22 Ford Motor Company Method of joining cylinder bore liners to an engine block
US5189992A (en) * 1991-06-06 1993-03-02 Teikoku Piston Ring Co., Ltd. Cylinder liner
US5357921A (en) * 1992-01-06 1994-10-25 Honda Giken Kogyo Kabushiki Kaisha Cylinder block and a process for casting the same
US5271363A (en) * 1992-12-02 1993-12-21 Briggs & Stratton Corp. Reinforced cylinder for an internal combustion engine
US5549454A (en) * 1993-03-04 1996-08-27 Wabco Automotive U.K. Limited High speed vacuum pump with reduced exhaust noise
US6138630A (en) * 1999-10-28 2000-10-31 Metalicos De Tecnologia Avanzada, S.A. De C.V. Cylinder liners for aluminum motor blocks and methods of production
US6357400B1 (en) 2000-03-07 2002-03-19 Federal-Mogul World Wide, Inc. Piston sleeve
US20050005891A1 (en) * 2003-07-10 2005-01-13 Min-Kyu Oh Cylinder liner
US6920859B2 (en) * 2003-07-10 2005-07-26 Hyundai Motor Company Cylinder liner
US20050188738A1 (en) * 2004-02-27 2005-09-01 George Rauscher Forged flange cylinder liner and method of manufacture
US20130139784A1 (en) * 2011-12-01 2013-06-06 Cummins Intellectual Property, Inc. Prechamber device for internal combustion engine
US9217360B2 (en) * 2011-12-01 2015-12-22 Cummins Intellectual Property, Inc. Prechamber device for internal combustion engine
US9441528B2 (en) 2011-12-01 2016-09-13 Cummins Intellectual Property, Inc. Prechamber device for internal combustion engine

Also Published As

Publication number Publication date
ES245592Y (es) 1980-10-01
GB2011534B (en) 1982-06-16
DE2900131A1 (de) 1979-07-05
IT7869598A0 (it) 1978-11-14
IT1108364B (it) 1985-12-09
PT68792A (fr) 1978-12-01
SE7900030L (sv) 1979-07-04
DE2900131C2 (de) 1983-04-21
DE7900094U1 (de) 1979-04-12
JPS5493710A (en) 1979-07-25
RO80199A (ro) 1982-10-26
FR2413553B1 (nl) 1983-01-28
TR21163A (tr) 1983-11-25
SE438890B (sv) 1985-05-13
ES245592U (es) 1980-01-01
BE873245A (fr) 1979-04-17
FR2413553A1 (fr) 1979-07-27
GB2011534A (en) 1979-07-11

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